Car-door mechanism.



A. CHRISTIAIISON. CAR DOR MEGHANISM. APPLIOATION FILED PEB.21.1914.

1,121,16. Patented Dec.15,1914.

2 SHBBTSHEIT 1.

ANDR-W CHRSINSON, E BUTLER, PENNSYLVANIA. ASSIGNI L T,O STANDARD STEL CAR COMPANY, PTTSBRGHJ'PENNSYLVANA.

v CAR-D003 MECHNSM.

Specificanion c1 Lctters 3;atenf.

.PatenedDeo. :15. 19m.

Applica ioniiled Feliiunry 21, 1914. Serial No. 820,368.

Be ia knonn that I, NDREW C;IRISTIAN- SON, a citizen of the United States, and resident of Entier, in ,the connty of Entier and Stzite of Pennsylvania. have inventod a neW and usefu1 Improvement in Car-Dom deohnnism; and I do hereby deoiare the foilowing to be a full, ciear, and exact de scription thereof. V

My invention relates to 'a dom mechanism for cars.

The invention reiates more paricniariy to that class of door operating mechanism employed in connection Wi:h hopper bottom cars in Which the sheaves and other operating parts are contained Within ne space f0rmed between the inside hopper shoots between the hoppers which entend down on ezh side thereof.

The object of the present invention is to prmide a strong and dnrabie meansior scuri:g arms to the doors, in that type 03? ioccinng meahanism where the arms are adapted to hooi; in; over the end of a oam projection on the shenve, and drawn up into this position by means of chains.

TU' these ends my invention comprises novci featnres hereinaiter set forth and ciaimed.

In the accompanying drawings. Figure 1 shows a side view of a portion of a hopper With a portion of the hopper shoot ren1omd and the means for connecting the operacing mechanism to the door is shown in section. Fig. 2 is a iike view showing the doors open, and Fig. 3 is a section on the line 3 3 Fig. 1. F1gs. 4: and 5 are eniarged detaiis.

in the drawing, the nnmomi 2 designates tne sides of the car to whioh the outside hoppor si1eets 3 are soeur-3d. The central siils 4 have the inside hopper shees 5 3eoured hereto and said hopper shoots iorm tho chnmber 6 within Whioh the oporating parts for iifting the doors are contained. The snaft extends transrseiy of the car and mounted on said shaft is the drum S. A drnin 9 is supported by trunnions 11 on oracits 12 rocnred to the center-sills and said arum bas tiie sheaves 13. Chains 14 are seaured to tire drmn 8 and pass aronnd the n This gius grenier fiexibiiisy, and permits of Un Winding np of the links on the sheave more rendily ve;; M- to which they are secured.,

Tho drnm 0 has the cam portion 15 and the 111;: .16. A link 17 is connected to the 111;: 10. and a link 19 to said link 17'.

The' onter and of the shaft i is square and the Iflt(h6tfl"hfli 7 engages :said squared portion of said shaft. The ratohetwheei 7' is .held on said shaft by the projection 7" on the bracket 7". This bracket 7 is riveted to ,the ;carbody and *also forms a support for the naWl 7. The shaft 7 can be withdrawn throngh the ratohot-wheel 7 s0 sai.d ra.vfchet is held by the projection 7*. This does away With the seouringof the A ratchet in place by 9. pin or othr k v.' The hook-shaped arms 19 are *conneoted to the link 18 and when the door is closed the hooked portions of said arms 19 are adapted to engage tho oam-portion 15 of the sheave 9 as cieariy indicated in Fig. 1. The doors 20 are hinged as at 21 to the hopner-bottom, and said doors are connected to the amis 19 b the boits 22, the smail links 93 being interposed betweon said hoits and said arms 19. The bolts 92 have their hoads flattened to pass between the links and the pin 24 passes through said links and boit and is secnred in place by the ootter-pin 25.

The pair of doors 90 are connected by the bar 96, Whioh enables the pair of doors on opposite sides of the center-silis to be operated sinmltamonsly bv the same oner-n atin;z mechanism. ihe sbcket-piate 2T, providod nith the socket 99, aid socket on1braeiDg a large zmrtion of said boit and Weli in) to the upper end of the boit, 50 215450 protoct the same, and re iieve the strain mi the boit thereby prevent ing bending or disiorting of the same. The boit extends through the sooket and a nui; 99 engages the throaded portion of said boit. said nnt ontorinsz an opening 30 in the bar 26, whereby said nut is locked against inward or ontward morement on the mit. In order io change the position of the boit 29, tho boit is disconneoied from the link 93 by removing tho oottor-pin 95 and the pin 24:, nheronpon the boit nmy be adjusted oy holding tho nnt 99 and turning the boit, and tim boit is then connected up to the link .28. v this construction. the boit, when once adjnsted, romains in this adiusted position, due to tho fact that the nut 99 is heid against longitudinal movoment by its engagement with tho opening 30 in the bar 26 and conseqnentiy, When the boit is once 110 Fecnred to the bar 96 is 

